Sewing-machine binder guide



C. H. SANBORN SEWING MACHINE BINDER GUIDE Filed June :50. 1924 June 9,1925. "1,541,235

Patented June 9, 1925.

UNITED STATES CHARLES H. SANBORN, OF NEWI BURYPOBT, MASSACHUSETTS.

SEWING-TEACHIN'E BINDER GUIDE.

Application filed June 30, 1924. Serial No. 723,173.

To all whom it may concern:

Be it known that 1, CHARLES H. SAN- BORN, a citizen of the United States, and

resident of Newburyport, in the county of Essex and State of Massachusetts, have in-. vented an Improvement in Sewing-Machine Binder Guides, of which the following is a specification.

In the operation of straight needle sewing machines in binding the edges of upper leather for shoes with a galloon, or tape, where the galloon is simply bent about the edge of the leather onto both sides, and attached by stitches which pass through the opposite portions of the galloon and the intervening leather, it is customary to vary the extent to which the edge portion of the galloon laps onto the outer side from a width equal to approximately half the total width of the galloon to a width which is the least possible which can be turned over thereon and stitched. In performing this operation, it is customary to provide the machine with an attachment for folding the galloon longitudinally about the edge of the leather and hold it in position while it is being secured by the stitches. The form of attachment most generally employed for this purpose is known as a strip reversing binder guide and comprises an arm having a transversely curved throat and a transversely concave guiding and folding groove, at right angles thereto, so that the fold formed in the strip, as it is drawn through the throat, is reversed as it is drawn against the bottom of the groove. Prior to my invention, it has been customary to provide attachments of some six diiferent forms of guiding and folding grooves for use according to the width of galloon to be turned over onto the face side of the leather.

The object ofmy invention is to provide a form of attachmentof the above described type and for the above described purpose which is provided with an improved means for guiding and controlling the extent to which the galloon is laid onto the other side of the leather, which is adapted for adjustment, so that this extent may be varied within the desired limits, whereby a single attachment may be made to perform the work of the several different attachments which have previously been employed.

I accomplish this object by means of the construction hereinafter described and illustrated in the accompanying drawing, in which:

Fig. l is a plan view of a sewing machine attachment containing a preferred embodiment of my invention and shown in position on a sewing machine table.

Fig. 2 is a perspective view thereof.

Fig. is an end view thereof.

Figs. 4t and 5 are detail views of the two main parts of the attachment.

Figs. 6 and 7 are enlarged detail views showing diderent adjustments of the attachment.

Fig. 8 is a longitudinal sectional View of the attachment on an enlarged scale.

Fig. 9 is a perspective view, illustrating the operation of guiding the galloon into position for attachment.

As shown in the drawing, the main body of the attachment is similar to that now generally employed for the purpose above described, and comprises an arm a which is adapted to be clamped on the machine table by a thumb-screw 79 passing through a slot 0 in the arm to permit adjustment thereof, said arm having a semi-circularly shaped groove (Z in its end which extends transversely of the arm in the direction of the feed of the machine, the arm being set at right angles to the feed. The front edge of the armlias a longitudinal, transversely convex rib e 011 its front edge, which is enclosed by a semi-casing f at its front end to form a semi-annular passage 9 through which the galloon. a: is fed after passing between the tension fingers 72,. With this arrangement the galloon is bent ,convexly at its front side as it emerges from'the passage 9 and is then drawn sharply at right angles into the semi-circular groove CZ, so that it will be bent oppositely and lie against the bottom of said groove. The leather about the edge of which the galloon is to be laid is so held that its edge is pressed against the bottom of the .groove at the middle thereof, and the galloon is thus bent over onto both sides of the leather and about its edge. The sewing machine needle 2' operates close to the rear side of the arm a, so that the galloon is stitched in the position in which it is held. Prior to my invention, the extent to which the galloon lies over onto the face side of the leather has depended on the formation of the end groove and with the construction shown the galloon will be folded along the middle,

llO

groove 4 Short distance beneath its upper side, the edge'portion of said upper side having 'a slot "or notch therein, which said dgegage is located Said'slo'tis ofsufficient length to permit the necessary longitudinal adjustment of the finger and acts to hold said fingerfroin swinging out of If fdot fo is integrally, or otherwise 'pernia- I nltly connected to the lower end of the e d 'e. gage at right angles there to, said foot heing arranged to project horizontally be and each side of the edge gage providing work engaging face p at its upper side and av guiding 'face p at its upper sideand at the inner side of the edge The fron't end of the foot 72 is upturned jaind extends in front of the front e or t e a "I'n'operation the galloon is drawn through the pas's'age g and at right angles against the liottoin'of the groove d as before described, so that "it is fpartly' folded longitudinally; one edge portionloeing drawn against the under side of the groove and the other against the iipperfside fth'e'reofi The edge gage a depends below the upper side of the groove (L -{to sash an extent that the face 1129 on upper inner side o fthe foot p, is held at a distance from the upper side of the groove with relation tothe leather will depend on r transverse adjustment of the edge gage with relation tothe bottom of the folding groove (Z, That is, the nearer the gage is adjusted to the bottom of the groove,

the narroweiywill he the portion of the which is tem hat greater than the thickj ness of: the g'alloon and the arrangementis' such that as the galloon is drawn rearward,"

"its upper edge portion will be drawn into the spaceloetween said face p and the upper side of the groove ed with its edge in abut ment with the inner or adjacent side of the edge gage The transverse position of the ga lloon inthe groove is thus determined by"the position of the edge gage n. The leather, to which the pa e hinding is to he applied, is placed between the under face 32 of the foot p and the lower edge. portion of the -g'alloon, which is resting onthe lower side of the grooved, the edge of the leather being pressed against the bottom of the groove and its upper side being held close to or against the under 'face 72 of the foot p whileits underside lies on the portion o f'tlier'galloon which rests onthe under side o'f the groove (Z. The galloon will thus he laid about the edge of the leather and will he fed to the needle in this position. The position in which the galloon will be held 's'trip "as it 'isdr'a'ivn through said galloon which will he permitted to lie on the upper side er; the leather as it is fed tothe needle. adjustment is readily Seem d by loosening the screw}; and adjusting the finger j floiigitiji'dinally. The same result is thus secured with (meatta'chn'ie'nt as wouid 'he secured h'y a series of similar devices having folding grooves of diderentshapes. llforeofver m improved construction more 'efiective'ly and accurately guides'th'e ga lloon than said prior devices, as thefootp operates in conjunction with the edge gage "n, to support the inwardly projecting edge portion of the galloon, so that its edge is held against the gage as it is drawn pastthe same.

A strip reversing binder guide foifsewin-g machines having a longitudinally extending transversely j c u'rved guiding throat, and atra ns versely concave folding "groove extending transversely of't'he end of them-1 in the direction of t'lie'sewing machine feed, and adapted to 'fold a strip longitud ally as it is drawn theret-hroiigh, a -Hn ei niom e ed on said arm and hav ng an edge gage depending from the upper" side of said groove in position to engaged by the ii-p p'er'ino's't edge 'of the ltingituc'linally folded I *groove, and to determine the transverse position of the strip in the groove and the extent 'to which it will overlap "the 'upp'erside of the worln V p I p v y 2. Astrip reversin hinder guid'e for'sewing machines having a longitudinally eX- tending transverselycurved guiding throat, and a transversely concave folding ,groove extending transversely ofthe end of the arm in thedirection of the sewinganac'hine feed, and adapted to fold a strip longitudinally as it is drawn ftherethl'ough, an 'edg'e gage mounted on said arm and having a p ortion thereof depending infront of said groove from the upper s idefthereo'f in position to engage, thehpp'erniost edge of the long't tudinall'y folded strip as it is drawn avg: l st the bottom' ofthe groove, and means permitting adjustment of said gage to land from the bottoin of said groove to 'v'arythe trans verse position of tliestrip therein and determine the extent to which it will overlap the upper side of the work.

A sewing machine hinder guide coinprising an arm having "a transversely concave groove therein'arrangedto extend horizontally transversely of the end thereof in the direction of the sewing machine feed, and having means whereby a strip of galloon Will be folded longitudinally as it is drawn therethrough, said groove having a slot extending through its upper side transversely thereof, a finger mounted on the upper side of said arm for adjustment longitudinally thereof and having an edge gage at its end depending through said slot in position to engage the uppermost edge of the transversely folded galloon as it is drawn 'through said groove.

i. A. sewing machine binder guide comprising an arm having a transversely eoncave groove therein arranged to extend horizontally transversely of the end thereof in the direction of the sewing machine feed, and having means whereby a strip of galloon will be folded longitudinally as it is drawn therethrough, an edge gage mounted on said arm arranged to depend into said groove in position to engage and guide the uppermost edge of the galloon as it isdrawn through said groove, a foot piece on the lower end of said edge gage and having a portion thereof projecting therefrom towards the bottom of said groove, to .support the edge portion of the galloon engaged by said edge gage and means permitting adjustment of said edge gage to and from the bottom of said groove.

5. A sewing machine binder guide comprising an arm having a transversely concave groove therein arranged to extend horizontally transversely of the end thereof in the direction of the sewing machine feed, and having means whereby a strip of galloon will be folded longitudinally as it is drawn therethrough, an edge gage mounted on said arm arranged to depend into said groove in position to engage and guide the uppermost edge of the galloon as it is drawn through said groove, and a foot piece on the lower end of said edge gage having a face on its under side for engagement With the material to which the galloon is to be attached and having a portion projecting towards the bottom of the groove from the inner .side of said edge gage to support the upper edge portion of the galloon while engaged by said edge gage.

In testimony whereof, I have signed my name to this specification.

CHARLES H. SANBORN. 

